Ignition-magneto.



A. L. HEIZER. IGNITION MAGNETO.

APPLIOATION FILED AUG. 26, 1909.

I Patented Apr. 29, 1913.

INVENTOR.

'WITNESSES:

@710. 9 47 4 I BY 1 I ATTORNEY.

Alexander L Heizer.

A. L. H'EIZER.

IGNITION MAGNETO. APPLIOATION TILED AUG. 26, 1909.

- Patented Apr. 29, 1913.

WITNESSES: I, A I INVENTOR. w. 7% I Alexa-ruler L- Heller (O 7%. BY v I l 2 5541M A TTORNEY.

A. L. HEIZER. IGNITION MAGNETO. APPLICATION TILED AUG. 26, 1909.

Patented Apr. 29, 1913.

4 SHEETS-$111131 4.

- INVENTOR'. Alexamder L Heller.

WITNESSES:

ATTORNEY.

UNITED STATES PATENT OFFICE.

ALEXANDER L; HEIZER, 0F ANDERSON, INDIANA, ASSIGNOR TO VESTA ACCU'MULATOR COMPANY, A CORPORATION OF ILLINOIS.

IGNITION-MAGNETO.

Specification of Letters Patent.

Patented Apr. 29, 1913.

Serial No. 514,736.

' Application filed August 26, 1909.

17 '0 (171 whom it may concern:

Be it known that I, ALEXANDER L. Human, of Anderson, county of Madison, and State of Indiana, have invented a certain new and useful Ignition-Magneto; and I do' hereby declare that the following is a full,.clear, and exactdescription thereof, reference being had to theaccompanying drawings, in which like letters refer to like parts.

The object of this invention is to improve the construction of ignition apparatus for combustion engines so that a uniform spark will be obtained at all times and under all ther movement of the timer the pole pieces conditions of adjustment.

The chief feature of the invention relates to the correlation of the armature core, the pole pieces and the timing mechanism. The relative positions of these parts are vari d. Not only is the timing mechanism adjustable angularly relatively tothe armature shaft, and the pole pieces likewise adjustable relatively to the armature shaftand core, but also, the timing mechanism is adjustable relatively to the pole pieces. The timing mechanism moves the pole pieces for adjustment, but there is a certain limit of movement of thetiming mechanism independently of the pole pieces. Hence, when the timer is in its retarded position, the armature and movable pole pieces are in such relation to each other as to give a full spark at the starting of the motor, whether by cranking the engine or otherwise: After the motor has started the timer may be advanced say about twenty-five degrees on the armature shaft without any corresponding movement of the pole pieces. .But the furbeyond said twenty-five degrees advance also advances the pole pieces without changing the character of the spark. Likewise, the return movement of the timer for about twentyfive degrees does not cause the corresponding return of the pole pieces, but the further return movement of the timer returns therewith. This construction gives a uniform full spark at all stages of the timing adjustment.

The details of the invention will be understood from the accompanying drawings and the following description and claims;

In the drawings Figure 1 is a central vertical longitudinal section through a magneto. Figure 2 is a vertical transverse section on the line 2-2 of Figure 1 showing the timer at the starting position. Figure 3 is a section on the line 3-3 of Figure 1 showing the relative positions of the armature and pole pieces at the starting position corresponding to Figure 2. Figure 4 isa section the same as Figure 2 with the timer advanced about twenty-five degrees from the starting position and without advancing the poles. Figure 5 is the same as Figure 3 showin the relative positions of the armature an pole pieces to correspond with the position of the timer shown in Figure 4. Figures 6 and 7 are sections similar to Figures 3 and 5, showing the armatures in slightly difierent positions. Figure 8 is a section similar to Figures 3, 5,

and 6, showing the poles and tlmer fully advanced.-- Figure 9 is a section-similar to Figure 8, but showing the timer slightly retarded without effecting the adjustment of the poles as is indicated by the difference of position of thelevers shown indotted lines in the two figures.

the timer at the. starting position. Figure 11 is the same as Figure 10 with the timer moved about twenty-five degrees. Figure .12 is a section on the line 12-12 of Figure 1'. Figure 13 is a section on the line 13-13 of Figure 11'.

In detail, a casing is provided consistingof a bottom portion 10, top portion 11 and an end portion '12, in which the armature shaft 14 is suitably mounted. At the other end of the casing there is a ring 13 detachably mounted, The armature has a win ed core 15 with a peripheral winding 16. he wings of the core projectin opposite positions and have on them a plate 11' which, so far as my present invention is concerned, may be referred to as a part of the armature. The device is provided with an internal se-' ries of magnets 18 and an external series 1.9. None of the features of construct-ion of the foregoing parts of the device torm'any essential part of this invention, and'they may be modified as desired.

The pole pieces 20 are not stationary but oscillata'ble in the casing, being mounted at one 'end on a ring 21 that can turn in the casing, and at the'other end being mounted Figure 10 is a section on the line 10-10 of Figure 1 showing on an angular end piece 22 which can oscil:

late in thering l3, and which contains a,

independent movement of the timing mechaaid tim- I nism relatively to the pole pieces.

' ing mechanism 1S oscillated by the arm 28 fte'nding'fla'nge on theperipheral edge t ere,- of, .through'which terminals 30 extend that secured thereto; The slots 27 are made long enough in the onstruction shown to permit about twenty-five degrees movement of the 'fti'mer before it begins to move the pole pieces. That is-true whether it ,occurs at the beginning of the advance movement of the timer or at the beginning of the return or retard-movement thereof. I

The timing disk 25'has an outwardl 'exare connected-with each other by wire 31.

These rermina-ls'are insulated from the disk 1n- .wai'dly therefrom. There is also a s eeve 32 'said'disk 25 and immediately surrounding spring 38 comes -;1ev'er 36 ceases, said parts separated bythe spring 39, which forces the free end of' the lever 36 outwardly.

o 25 and have a'co'ntact. headprojectin projecting from the central portion of the armature .shaft and secured thereto by a screw 33',';s o that the disk 25 is .in electrical 'coinmuniz'atlon With' the shaft 14. The sleevq' 32 has fan ear 34 containing an 'a'djustab e contact screw 35..

roj ecting therefrom A curved 1e wer '36 is pivoted on the pin 37 in the disk 2') between the sleeve-32 and the outenfiangefand -in. lposit-ion to engage and. ".beactuated by the 1 eads. on the terminals 30, and wh ,n ltlSdGlQllS actuated, the contact in engagement with the screw 35, and when. the actuation of the 35 and 38 are The movement of'tlie'lever .36 is limited by the 1 pin 40 in thedisk 25engaging the heel of the Tlie'operation-and regulation of the de-. ,viceis'asfollows: The parts are in the starting position when they are as indicated in 1 Figures 2'and 3-." Then the. gap between-the arm mire core and pole pieces .lS relatively small at the moment of sparking, and Wlll produce'atull spark'upon the cranking of the engine or the initial operation of the armature; When-the magneto is thusflsta rtf .e-Iit isregulated in the matter of timing bymovement of the arm 28. The first movement is from the position. shown in Figure 2 to that shown in Figure 4, that '1s, from the position shown in Figure 1() to that shown aure 4 to or' to the desired limit of movement, which nent of sparking will the V armature of adjustable .in Figure 11, as far as theslots 27 will permit, which in the form herein shown is about twenty-five degrees. That movement of the timer does notchange the position of the pole pieces 20, but it doe-i change the gap between the pole pieces at themoment of sparking, and the core of the armature,

as appears in'Figure 5. But under increased speedthis gap makes substantially the sameuniform spark as before. As the speed increases, the timer is advanced farther, being moved from 'the position shown in Figthe position shown in Figure 6,

may be to any extent, say about ninety degrees. .That additional advance of the timer causes a corresponding advance of the pole pieces, so that the gap between the pole pieces and core of-the armature at the mocontinue to be the same as in the former position of the-timer,

that is, as "shown in Figure 5.. In the return mov'tment the timer moves about 25 before itbe ins to move the pole pieces, going to the positionshown in Figure9. The further return movement -of the timer causes pele pieces-to be returned-by it to the original position shown in Figure 3.

WVhat 'I claim 'as my invention! and desire to secure by Letters Patent 15:

1. Anignitionimagneto comprising a rotary 'armature, shaft and core,-oscillatable polepieces, an oscillatable timing mechanism and mechanism for oscillating the timing mechanism relatively of the pole pieces for a predetermined distance and then oscillating the timing me hanism and pole pieces together. "1

2. An ignition magneto including .a'rotary armature shaft and "core," oscillatable pole pieces, members rigidly connecting the pole pieces to oscillate together, atiming mechanism, and means adapted to oscillate the timing mechanism a predetermined distance independent of the pole pieces, and then oscillate the pole pieces and timing mechanism simultaneously. I I

3. An ignition magneto including a rotary armature shaft andcore, .oscillatable pole pieces, members connecting the pole. pieces tooscillate together,.a timer mounted near the end of said armature shaft, a terminal carried by the timer, means, on the shaft for making and breakingthe circuit, a connection between thetimer andone of said members adapted toper'mit the timer 'to move for a predetermined distance independent of 'theole pieces and. then move the timing mechanlsmandpol'e pieces together, and an arm foractuatin'g the same.

' 4. In a magneto the combination with the pole pieces, .rings rigidly secured to the pole'plec'es, an adjustable timing mechanism connected with one of the rings and means adapted toad- 30 timin just the ti niiig me'chani sm independently thereoffto a predetermine'd point and lthfn adjust the-"pole'piecesth'erewithl In il g t th co 5 armature' of oscillatable poleipiecesgrings eonnectedtojthe pole iecs,-a"timingmechanisin, part "of which is oscillatable and connected with one of said" rings, and means :for 7 oscillating "the "o scillatable part of the t n 1o ingmechanism to a predetermined point Iii-j.

I dependently. of th cillate the polepjecegtherewith,

6. 'In a magne o the co b nat on a casing, of an aimature therein, a"p'1ural1ty ofrings, onejournaledai each endof the casing, pole pieces connecting the rings, a

member connectedto one of thei'ingsto'ro tate independently thereof 'a fpredetern'i-ined distance and then to rotate" the ring therewith to shift'the-position of the pole pieces and :amechanism 1 inclosed by said .member, part of the timing mechanism se-' cured to the armature shaft and part toithe member; v

"7. In. agmagneto, adjustable pole pieces,

rings secured to said-pole pieces, an adjustabIe timing mechanism and a screw and slot connection between one of said rings and the timing. mechzinism ada ted to permit the mechanism to e advanced or retarde relatively of the pole pieces apredetermined distance and adapted to permit the advance or retard of the timing mechap'nism and pole pieces together after the limit 3 of the relativeadvancem'ent orretardation o f the timing mechanism is effected.

mature thereon, oscillatable pole pieces, membe'rs rigidly conneotin the pole-pieces 0 to oscillate together, an e ement journaled on one end of the armature shaft, a screw and slot connection between the element and one of said members adaptin the element 'to move a distance indepen ently of the member and to move the member therewith after such independent movement and a tim ing mechanism, part thereof rotatable with the armaaure shaftand part secured to the element.

I 9. In a device of the class described, a cas-.

ing, an. armature therein, a plurality of rings, oscillatable ole pieces-connecting the rings, 'ahollow dis journaled on one end of r the'armature shaft, a connection between the I disk and one of the rings adapted to permit the disk to move'a' distance independently of the ring and to permit the ring to move therewith after 'such movement and an arm on said disk for effecting movement. 0' -10. In a magneto an armature, adjustable .pole pieces, members connectin the pole pieces to oscillatetogeth er, a timing mechanism, a pin and slot connection betweenthe -ti ming mechanism and one of said members adaptedto permit a relative" adjustment bea the olepi-eces aii'dtiniingni ehanism nibination with th e pole pieces and then cs3;

p -p e ndi e n iee ani mi a adapted'to oscillatefthejpolemp'eces and 8. In a magneto an armature shaft, an arand 'an arm for oscillating 'thetiming, iiiech- 'an'ism' relatively of the, olerfii'eeesfori-f P I determined distance an then oscillating the timing mechanism and "pole pieces 'to'gethenj' l Z a 1. 111 ai "eta n erm rejb el afl'i 'able pole =.pieces, Ifmemberfsf; c'onn et'ing the I pole pieces to'oscillatetogethei', anoscill I able timingtmechanisjm,a and slat-gong;

n e", n J: p fife t es; J .mechanism"and oneof-saidmembers toper mit a limited relative 'oseillationbet t ing mechanism togetherfafte fie tive oscillation,v

I 12. 'In 'a"device' o i.,t I armature shaft, an, armature thereon, p v latable pole 'lpiece's, rings cqnneetingsaid po e pieces toaoscillate together,,-a'disk 'journal'ed' on the. end of said armature? shines, screw and slot connection between the disk and one of said'rings adapted to permit :thedisk to move independently of the ring and to move the ring therewith after such independen movement, an outwardly directed periph ei al flange on the outer end 015 said disk terminals on said-flan e each having a contact on't-he inner end t ereof, a wire connecting said terminals, a sleeve secured upon said shaft,

an ear projecting therefrom, anwadjustable contactscrew secured on said ear, a curved. lever pivoted on said disk between said sleeve and said flange and in position-to engage and to .be actuated by the contacts of the ter- 10o minals on the flange, and-a contact spring secured on said lever adapted to contact the contact screw.when the lever is-actuated.

13.: Iii a device of the'class described, an armature shaft, an armature thereon, oscilllatable pole pieces, members connecting said -pole,pieces, a disk journaled on the end of said armature shaft, a. connection between the disk and one of said members adapted to permit the disk tomove. independently of the member and to move the'member therewith after such independent movement, an outwardly directed peripheral-flange on the outer end of said disk, terminals on said ,flange, each having a contact on the inner end thereof, -a wire connecting said termithe disk and one of said rings adapted to i I pert nit the disk to move independently 'of the ring and to move the ring therewithafter such independent movement,-r-'a -fiange on the'outer end of said-disk, terminals on 5 ,sai fdfiange, each havingli-contact on the "f 1- end thereof, a. sleeve secured u on said shaft, anjear integral therewith; a justable' contact screw secured onlsa'id ear and a. le-

vei- 'pivoted on said disk between said-sleeve.

10, and said' flange and in" ositionto engage andtoz b'e actuated byt e contacts ofthe terminals ontheflange. i 15.- :Inqadevice of the class-described, a.

'armature'shaft a pinand slot "connection t f m9 and: Merci 515 a. flange on theout'eren minals' on said flange-, each having a. contact on the inner end -thereof,' a sleevesecured 2 upon said shaft, a lug projecting therefrom, a w an adjustable contact screw secured on said I witnesses; herein named. a

adapted ,t olperrnit the disk rnove inde- 20 pendently of the ring and'to move the ring therewith after such indexendentmgtement,

lug; and a contact Springsecured on lever adapted to dont ct the contact screw when the lever is actuated. J "T 5 In 'witnessiwhereof, Imhave hereunto aflixedmy signature in the presence of the.

Copies of this patent may be obtuinefi ror five centi achfby addresslng .-the" conimiisioner ot'ratentlf Washington, D. G.

of said disk,- ter 

